Martin was fatally shot by Neighborhood Watch volunteer George Zimmerman on Feb. 26 in Sanford. Zimmerman is charged with second-degree murder. The trial is scheduled to start June 10.

In the Lake interview, Fulton discusses her feeling of loss and her son's character.

"He was a very loving teenager … He still would sleep in my bed and talk on the phone," Fulton says. "You know, he was just a regular teenager. … He used to call me Cupcake. … I just didn't get enough kisses from him, enough hugs from him … My heart is just hurtful right now. I think I cried a pool of tears."

She also says Neighborhood Watch volunteers are not supposed to follow people.

"We just wish on that day that he'd [Zimmerman] let the police do their job," Fulton says.